<iframe src="//player.vimeo.com/video/43426940?title=0&byline=0&portrait=0" width="500" height="281" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe> <p><a href="http://vimeo.com/43426940">100 Riffs (A Brief History of Rock N' Roll)</a> from <a href="http://vimeo.com/chicagomusicexchange">Chicago Music Exchange</a> on <a href="https://vimeo.com">Vimeo</a>.</p>